Tddc17 - Lab 2 Search

P (Meltdown) = 0,02578 P(Meltdown | Ica weather) = 0.03472 b) Suppose
that
both
warning
sensors
indicate
failure.
What
is
the
risk
of
a
meltdown
in
that
case?
Compare
this
result
with
the
risk
of
a
melt-­‐down
when
there
is
an
actual
pump
failure
and
water
leak.
What
is
the
difference?
The
answers
must
be
expressed
as
conditional
probabilities
of
the
observed
variables,
P(Meltdown|...).
P(Meltdown | PumpFailureWarning, WaterLeakWarning) = 0,14535 P (Meltdown | PumpFailure, WaterLeak) = 0,2 c) The
conditional
probabilities
for
the
stochastic
variables
are
often
estimated
by
repeated
experiments
or
observations.
Why
is
it
sometimes
very
difficult
to
get
accurate
numbers
for
these?
What
conditional
probabilites
in
the
model
of
the
plant
do
you
think
are
difficult
or
impossible
to
estimate?
a)
What
is
the
risk
of
melt-­‐down
in
the
power
plant
during
a
day
if
no
observations
have
been
made?
What
if
there
is
icy
weather?

It is hard to fully understand all possible factors that can effect or trigger an event and how they interact with each other. Observations are always a description of the past and is not always accurate in forecasting the future. E.g. Icy weather is not a thing you can measure and span over a wide range of weather conditions including combinations of precipitation, wind and temperature. d) Assume

that
the
"IcyWeather"
variable
is
changed
to
a
more
accurate
"Temperature"
variable
instead
(don't
change
your
model).
What
are
the
different
alternatives
for
the
domain
of
this
variable?
What
will
happen
with
the
probability
distribution
of
P(WaterLeak
|
Temperature)
in
each
alternative? The domain decreases in size of possible states as for example precipitation and wind is no longer a part of the estimations. The temperature will be represented as an absolute number or intervals, instead of just true or false. Resulting in a lot more defining of the probabilities of the child nodes with aspect to each value/interval of temperature.

Q6

a)
What
does
a
probability
table
in
a
Bayesian
network
represent?
The probability table shows the probability for all states of the node given the states of the parent nodes. b) What
is
a
joint
probability
distribution?
Using
the
chain
rule
on
the
structure
of
the
Bayesian
network
to
rewrite
the
joint
distribution
as
a
product
of
P(child|parent)
expressions,
calculate
manually
the
particular
entry
in
the
joint
distribution
of
P(Meltdown=F,
PumpFailureWarning=F,
PumpFailure=F,
WaterLeakWaring=F,
WaterLeak=F,
IcyWeather=F).
Is
this
a
common
state
for
the
nuclear
plant
to
be
in?
Kedjeregeln ger följanade: P(alla är falska) = P(ICYWEATHER) * P(PUMPFAILURE) * P(PW | PUMPFAILURE) * P(MELTDOWN| PUMPFAILURE, WL) * P(WL | ICYWEATHER) * P(WATERLEAKW | WL) = 0,95 * 0,9 * 0,95 * 1 * 0,9 * 0,95 = 0,69 Ja, detta är ett vanligt tillstånd. c) What

...Mo Thenard
IS3350 Lab #2
3/24/13
1. Security is a tool to build privacy and privacy is result of that.
2. Yes, because they gave him permission to do it and he knows not to share it with anybody.
3. Identity theft, and embarrassment to the company are some possible consequences.
4. Yes, because they used HIPAA compliance information.
5. The company took the action to fired him.
6. Yes, if it happened at work the company would be responsible, because they should the security means, not the individual employee who decided to work home.
7. Yes, because they didn't reported right away and tried to covered up.
8. EPHI and PII
9. No, it wouldn’t be an issue because its encrypted.
10. Encrypt the hard drive and removable media
11. Security awareness training and encryption policy for laptops
12. The employee is the weakest link
13. Train the employee and encryption.
14. True
15. GAO
Mo Thenard
IS3350 Lab #2
3/24/13
1. Security is a tool to build privacy and privacy is result of that.
2. Yes, because they gave him permission to do it and he knows not to share it with anybody.
3. Identity theft, and embarrassment to the company are some possible consequences.
4. Yes, because they used HIPAA compliance information.
5. The company took the action to fired him.
6. Yes, if it happened at work the company would be responsible, because they should the security...

...also contact
with water can generate enought heat to ignite combustibles.
2. In your own words, briefly explain the terms below. Copied answers will receive zero points.
a. equilibrium state
When a chemical reaction is equal. when the products and reactients are at equal rates
b. the effect of formation of a complex
a complex is a term used to describe a substance compused of two other
substances.When pushing two substances together they can form a complex which is usually
weaker than a regular chemical bond
3. A student is studying the equilibrium represented by the equation
2CrO42-(aq, yellow) + 2H3O+(aq) ← Cr2O72-(aq, orange) + 3H2O(l)
→
The mixture obtained by the student is yellow.
a. Describe the color change the student should observe after adding concentrated hydrochloric acid to the
equilibrium mixture.
A) Adding acid causes the mixture to become more orange. As H3O+ ion concentration increases, the
system converts some of the H3O+ ion to water and dichromate ions. The additional dichromate ion causes the
mixture to appear more orange than before.
b. Describe the color change the student should observe after adding solid sodium chromate to the equilibrium
mixture.
(HINT: when sodium chromate is dissolved in water, it dissociates into ions.)
D) Adding solid sodium chromate causes the mixture to become more orange. As it dissolves, the
chromate ion increases and CrO4 -2 ion is converted to dichromate ions. The...

...﻿Taylor Durham
Nutrition 101
Mr. Oropallo
Lab Report #2: Fat Extraction From Food
What is a triglyceride? Draw its structure.
A molecule that contains three fatty acids attached at the oxygen atoms of glycerol.
What are the differences between saturated and unsaturated fats? Drawn an example of each.
If all bonds are single, the fatty acid molecule is saturated. If there is a double bond among the carbon atoms, the fatty acid molecule is unsaturated.
What form does each of these fats take at room temperature and what are the common sources of each?
Saturated fats are solid at room temperature and unsaturated fats are liquid at room temperature. A common source of saturated fat is tallow, lard, and butter. Common sources of unsaturated fat are canola oil, corn oil cottonseed oil, and soybean oil.
What is your hypothesis?
I believe that we will extract less saturated fat than predicted by the packaging labels, especially for the walnuts and chips.
DATA TABLE - EXTRACTION
Food
Weight of beaker
Weight of beaker with raw food
Weight of raw food
Weight of beaker with dried food
Weight lost from food
% Lipid extraction
Chocolate chips
14.78g
19.79g
5.01g
18.47g
1.02g
20.36%
Potato chips
27.43g
32.43g
5.00g
33.51g
-.08g
-1.6%
Walnuts
17.07g
22.07g
5.00g
23.27g
-1.2g
-24%
DATA TABLE – DESCRIPTION OF FATS
Food
Color
Texture
Viscosity
Chocolate chips
Mostly brown, yet white at site of dropped chip into dish.
Dry and smooth feel.
Thick...

...
Effects of chocolate milk on
Performance
Physiology of Exercise: KINE 3315- 003
Natasha Hernandez
February 21 2013
Dr. Judy R. Wilson
Chapter 1 Introduction
Supplementation is essential for performance, but is energy drinks or sports drinks the best source of nutrients when replenishing glycogen store? The project that I am conducting is concerning the impact of the consumption of chocolate milk and its effects on protein turnover, muscle glycogen and performance during recovery from endurance exercise (2). The research regarding this material is relevant because it can possibly affect the way individuals replenish their glycogen stores following exercise to further improve their performance and over all fitness.
Physiological Area
Exercise can be damaging to the muscles, the damage that the muscle endure following a challenging or new exercise can take the form of soreness. Muscle soreness is attributable to the decline in carbohydrate stores and protein stores in the muscle during exercise. The decline in the body’s energy stores result in damage to the muscle that is preforming the exercise, which inversely causes soreness. Due to this occurrence it has been scientifically proven that replenishing depleted glycogen stores following exercise is imperative (1).
Rationale
The purpose of the experiment is to examine the effects of chocolate milk on performance physiology and fitness. It has been hypothesized that...

...Lab2: Protiens and Starches
Purpose:
An introduction to testing procedures for two large, organic molecules: proteins and starches.
Hypothesis:
In the test for protiens the water, being that it is inorganic will not test positive for protiens; it will serve as the negative control. The milk and 50% egg solution should test positive for protien as they are subsatnce derived from animals which contain protiens in order to carry the functions of life. The sucrose will test negative due to the fact that it is a carbohydrate and not a composition of organic material but rather a single part.
In the test for starches, water again will serve a the negative control for the experiment becasue it is inorganic. it appears obvious the 1% starch solution will test positve for starches becasue it is starch. The onion juice should carry starch due to the fact that starch is stored energy for plants and onions are very bulbous, while the sucrose solution again will not test positive because sucrose is only a part of starch.
Materials:
Test tube rack
4-5 test tubes
Transfer dropper
Deionized water
Evaporated milk
1% sucrose solution
1% starch solution
50% egg white solution
Onion juice
Biuret reagent
Iodine
Methods:
Protien test:
1. Set up four test tubes in the test tube rack.
2. Label each test tube by the tested material (deionized water, evaporated milk, 50% egg white, 1% sucrose)
3. Fill each test tube...

...Bair
May 28, 2013
Chemistry 36100
Introduction
The purpose of this lab was to produce benzoic acid by mixing sodium benzoate with hydrochloric acid. The Hydrochloric acid used in the experiment was a stock solution made by mixing HCl Acid and deionized water. HCl acid, historically called, muriatic acid or spirits of salt, hydrochloric acid is produced from sulfuric acid and common salt, NaCl (Princeton.edu). Since the early 1900's, sodium benzoate has been used as a food preservative (SolarNavigator). It is utilized in a wide range of preservative applications due to its antimicrobial action combined with its low toxicity and low taste (SolarNavigator).
It this lab, the theory used applied to understanding ho to use theoretical yield to get the percent yield. The theoretical yield of a reaction is the amount of product that would be formed if the reaction went to completion and is based on the stoichiometry of the reaction and ideal conditions in which starting material is completely consumed, undesired side reactions do not occur, the reverse reaction does not occur, and there no losses in the work-up procedure (Department of Chemistry and Biochemistry).
Experimental Method
Hazards/Warnings
A hazard of working with hydrochloric acid is that it could burn the skin if too much comes in contact with skin (Sciencelab1). If this happens rinse skin thoroughly under running water and alert the lab professor.
A hazard of...

...﻿
GS104
Lab Report
Experiment # 2
Data Collection
David Case:
January 23, 2015
Experiment #2
Data Collection
Objectives:
Exercise 1: Formulating a Hypothesis about pitching speed.
To form a hypothesis for the pitching velocity of a ball. Use a spreadsheet and math to calculate the actual velocity and determine the accuracy of the hypothesis. I will also roll a large ball to measure its velocity and graph its horizontal motion.
Materials:
Volley Ball Computer
Softball Large Open Space
Mitt Stop Watch
Chair Tape Measure
Tape Volleyball
1. Formulating a Hypothesis about baseball pitching speed.
1. Make a hypothesis about your pitching speed:
I believe I will be able to pitch the ball at a rate of 25 meter per second, based on my experience throwing the ball. I would call my hypothesis an educated guess.
2. I began my experiment with 2 friends our in the yard. We decided to use a distance of 10 meters between 2 of use with the third person timing the throw.
3. We each took turns throwing the ball 3 times, I have entered the date in the table below.
A) How did your throwing times compare to your hypotheses? B) How do the average times and speeds calculated by the spreadsheet compare to the ones manually calculated?
A. My hypothesis...